What is thickener in mechanical operation?
What is a Thickener? In very simple words, a thickener is a machine that separates liquid from solids. It is defined as a method of continuous dewatering of a dilute pulp, wherein a regular discharge of a thick pulp takes place which is of uniform density, concurrently with an overflow of clarified solution.
What are the two main types of thickeners?
Here is a list of the most common starch and gum food thickeners.
- Wheat Flour. Wheat flour is the thickening agent to make a roux.
- Cornstarch. The corn endosperm is ground, washed, dried to a fine powder.
- Arrowroot.
- Tapioca Starch.
- Xanthan Gum.
How many types of thickeners are there?
66 Types of Thickening Agents.
What is the function of thickener?
A thickening agent or thickener is a substance which can increase the viscosity of a liquid without substantially changing its other properties. Edible thickeners are commonly used to thicken sauces, soups, and puddings without altering their taste; thickeners are also used in paints, inks, explosives, and cosmetics.
What is thickener rise rate?
Thickening is a process where a slurry or solid-liquid mixture is separated to a dense slurry containing most of the solids and an overflow of essentially clear water (or liquor in leaching processes). Rise rate parametrizes the area required to recover the design flow or solids loading, the design dry tonnage.
What is the function of a thickener?
What is bed level in thickener?
Bed level is a frequently installed instrument and can be installed and serviced during normal thickener operation. Instruments measure the height of the interface between thickened slurry at the bottom of the thickener and the clarified liquor at the top.
How are control parameters used in high rate thickeners?
The control parameters used to maintain stable operation in high rate thickeners are underflow solids density, underflow withdrawal rate, flocculant dosage, solids inventory in the tank, solids feed rate, and mechanical torque limit restriction of rotating rake arm mechanism T H I C K E N I N G
What do you need to know about thickeners?
You, as operator of a thickener, or group of thickeners, will find out, if you haven’t already, that your machine is as slow and deliberate in operation as a sleepy elephant, and just about as hard to control if you let it get out of hand. We want to suggest some ways by which you can keep your thickener headed in the right direction.
What are the components of a thickener tank?
A thickener has several basic components: a tank to contain the slurry, feed piping and a feed well to allow the feed stream to enter the tank, a rotating rake mechanism to assist in moving the concentrated solids to the withdrawal points, an underflow solids withdrawal system, and an overflow launder.
How is a lifting device used in a thickener?
Electric drives are available for smaller thickener units. The lifting device is used to raise the rakes above the mud bed if the solids are not removed timeously. Single or multiple lifting cylinders can be employed for this purpose. A lifting device promotes a dependable and continuous operation during plant upset conditions.